One-to-many self-relation in prisma schema

I want to create a simple table:

Users
---
id
name
friends

friends field should be an array of other user ids. I'm trying to define a schema for this in schema.prisma:

model User {
  id      String  @id @default(uuid())
  name    String
  friends User[]
}

Saving the file autocompletes the schema to this:

model User {
  id      String  @id @default(uuid())
  name    String
  friends User[]  @relation("UserToUser")
  User    User?   @relation("UserToUser", fields: [userId], references: [id])
  userId  String?
}

I'm not sure how to interpret this. I have read the Prisma docs about one-to-many self relations, but since it states

This relation expresses the following:

• "a user has zero or one teachers"
• "a user can have zero or more students"

I doubt it's what I want. How do I get the "a user can have zero or more students" without the "a user has zero or one teachers" part?